Simple math: There are 911 days between 9/11/2001 and 3/11/2004 (912 depending on how you count).
Just a bit conspiracy theory syndrome: If you add 911 days to 3/11/2004, you get 9/8/2006 (or 9/9/2006 if you add 912 days), which is next week.
Now, this sounds like one of those things that you receive on email, from a friend that got it from a friend that knows a numerologist that says the if you sum the characters on "Bin Landen", and add his birthdate it becomes 666. Or Bill Gates, or George Bush, or whatever...
But if something happens next week (and I hope not)... I told you so.
PS: Isn't there a guy saying that the world is going to end because of a nuclear war that will start on 9/12/2006?